Change Nature of Address (NOA) and Screening Indicator (SCI)

A. This script will replace the called and calling NOA if it is set in the routing table.
Need to define a route column "called_noa" and "calling_noa" with the values national, international or Keep (to keep it unchanged)
 Routes -> Create New Route Column
  Name: called_noa
  Type attributes: national|international|keep
  Default: keep
Do the same for "calling_noa"

B. This script will replace the screening indicator if it is set in the routing table
Need to define a route column "screening" with these values: network or keep
 Routes -> Create New Route Column
  Name: screening
  Type attributes: network|keep
  Default: keep

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How to use:
1. Load flexible_noa_sci.rb script:
Gateway -> Routing Scripts -> Import Script File
File: flexible_noa_sci.rb
ScriptType: Customer
Load at Startup: [unchecked]
2. Edit main script in 3 places (maybe simple_routing.rb):
 require 'flexible_noa_sci'
 [In Main class]
   include FlexibleNOASCI
   route_remap :method => :flexible_noa_sci_remap